Tohoku Chapter, Architectural Institute of Japan Quick

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Tohoku Chapter, Architectural Institute of Japan
Quick Reconnaissance Report of East Japan Earthquake Disaster
March 21, 2011
Professor Reiji Tanaka, Tohoku Institute of Technology
Chairman of Disaster Committee of AIJ Tohoku Chapter
(Translated by Shunsuke Otani, University of Tokyo)
Reporter:
Mr. Muneo Kashiwadate
Date:
March 12 and 13, 2011
Mr. Kashiwadate of AIJ Tohoku chapter visited Kamaishi City, Iwate Prefecture, on March 12 and 13, 2011.
The Disaster Committee, Tohoku Chapter, provided the photos of the area to the AIJ Disaster Committee.
Kamaishi City is located in the south east of Iwate Prefecture, approximately 100 km to the south east of
Morioka City. The city is famous for fishery base (one of the three largest bases for ocean fishery in the
world). After New Japan Steel closed blast furnaces, the population of the city is decreasing. The city
faces a Rias coast, highly susceptible to tsunami attacks.
The following photos show the influence of tsunami wave attack.
(1) U-no-sumai-cho, Kamaishi City
The town faces Ohtsuchi Bay. The photos are from the west part of U-no-sumai-machi (residence of coal
geese). The town was washed away by tsunamis; only reinforced concrete (RC) and concrete block
masonry buildings were left standing. .
Photo 1: Overall view of Ohtsuchi Bay, Kamaishi
Higashi Highschool at far distance
Photo 2: Hikata district facing the U-no-sumai River
Photo 3: Timber houses in Hikata district
Photo 4: Only RC buildings are standing (previously
Housing for Employment Promotion)
Photo 5: Washed away of houses in Hikata district
Photo 6: RC or concrete block masonry buildings
are left standing
Photo 7: Community Center Building
Photo 8: U-no-sumai district
Photo 9: Before and after of U-no-sumai district
(2) Matsubara 3-chome, Kamaishi City (March 12, 2011)
Photo 1: Matsubara 3-chome, Kamaishi City
Photo 2: The Ohto River
(3) Ohmachi 3-chome, Kamaishi City (March 12, 2011)
Photo 1: 3-chome (Aoba Street), Kamaishi City, approx. 560 m from Kamaishi Harbor
(4) Ohto-machi 2- and 3-chome, Kamaishi City (March 12, 2011)
The tsunami came to Ohto-machi 2- and 3-chome, Kamaishi City, and reached the JR station. The area is
located approximately 850 m from Kamaishi Harbor.
Photo 1: Ohto-machi 2- and 3-chome, Kamaishi
City
(5) Tadakoshi-machi 3-chome. Kamaishi City
Tadakoshi-machi 3-chome. Kamaishi City, is located approximately 400 m from Kamaishi Harbor.
Photo 1: Tadakoshi-machi 3-chome. Kamaishi City
(6) Hama-machi 1- to 3-chome, Kamaishi City
Photo 1: Hama-machi 1-chome, Kamaishi City. Rear side of the fishermen’s cooperative association
building, approximately 60 m from the harbor. Houses were moved to road
Photo 2: Hama-machi 2-chome, Kamaishi City, only RC buildings are standing
Photo 3: Hama-machi 3-chome, Kamaishi City,
approx. 160 m from the harbor
Photo 4: The first story of a timber house was washed away and the second story is about to collapse.
The building behind is steel construction
Photo 5: Timber and steel construction suffered
more significant damage. RC buildings on the coast
side suffered less damage.
Photo 6: Approximately 165 m from the harbor
(7) Higashimae-machi, Kamaishi City
Photo
1:
Higashimae-machi,
Kamaishi
City,
approx. 170 m from the harbor.
Photo 2: An RC building, approx. 250 m from the
harbor.
Photo 3: Higashimae-machi, Kamaishi City,
Photo 4: Only RC or concrete block masonry
approx. 170 from the harbor. Timber houses did
buildings are standing
not maintain their original configuration.
Photo 5: Only timber houses behind an RC building survived from wash away
Photo 6: RC and steel buildings, exterior finishing
fell from the steel building
(8) Ohtsuchi-machi, Kami-Hei-gun
Photo 1: Ohtsuchi-machi, toward north direction,
Photo 2: Near Iwate Prefectural Ohtsuchi Hospital,
700 m from National Route 45 near the mouth of
approx. 550 m from the mouth of the Ohtsuchi River
the Ohtsuchi River
Photo 2 (Cont’d): Near Iwate prefectural Ohtsuchi Hospital, approx. 550 m from the mouth of the Ohtsuchi
River
Quick Reconnaissance Report of East Japan Earthquake Disaster
March 25, 2011
Chairman of Disaster Committee, AIJ Tohoku Chapter
Dr. Tomohiko Arai, Tohoku Institute of Technology
Reporter:
Dr. Tomohiko Arai, Tohoku Institute of Technology
This report describes the tsunami damage of Yamamoto-machi, located at the southern end of Miyagi
Prefecture. Two residential houses owned by faculty members of Tokyo Institute of Technology were
washed away and destroyed by tsunami attacks. They and their families are living in shelters. The
tsunami wave height reached as high as 3 to 4 m in Yamamoto-machi. Damage of houses was very light
in the areas where tsunami waves did not reach.
Photo 1: A vehicle rests on the roof of a house
Photo 2: Tsunami wave reached the roof of the first
story of this house
Photo 3: Contents of the first story rooms were
washed away and emptied by tsunami waves
Photo 4: First story is about to collapse during
tsunami attacks
Photo 5: Foundation was exposed by tsunami wave
wash
Photo 6: Pile foundation, which implies poor soil
conditions in this area
Photo 7: A house was moved by tsunami waves
and nothing but debris can be seen
Photo 8: Rolling door shutter was broken, and
tsunami water went inside the building
Photo 9: Exterior walls were broken and water got
inside by tsunami attacks
Photo 10: A reinforced concrete house is standing
although the first story was attacked by tsunami
waves
Photo 11: Tsunami water reached the first story
roof, and concrete block masonry walls fell down
Photo 12: Tsunami water reached the first story
roof
Photo 13: The inside of a house after tsunami
attack. No furniture is left in the house.
Quick Reconnaissance Report (No. 7: Ishinomaki) of East Japan Earthquake Disaster
March 26, 2011
Chairman of Disaster Committee, AIJ Tohoku Chapter
Mr. Koichi Ishioka, Ishinomaki Technical High School
Reporter:
Mr. Koichi Ishioka, Ishinomaki Technical High School
This report includes photos taken by Mr. Ishioka of Ishinomaki Technical High School. The photos depict
the damage caused by tsunamis. He was confined in his school from immediately after the earthquake on
March 11 to noon on March 12. Mr. Ishioka sent the following message;
Two weeks have passed since the tsunami earthquake. During this period, I was involved in
contacting all students and staff of the school. The safety of all students and staff was confirmed the
day before yesterday. This is a miracle. The last student found safe was our student in Department of
Architecture, living in Ayukawa district. On the other hand, many losses of students were reported in
our neighboring schools. Let me send photos taken during my visit to various places to check the
safety of my acquaintance, in Kadowaki, Minami-hama, Minato-machi areas and factory of a paper
manufacturing company, where tsunami damage was worst.
Photo 1: Flooding in front of Ishinomaki Technical
High School
Photo 2: The gate of the high school 33 minutes
after the earthquake
Photo 3: Water came to the campus from Jozan
Canal 45 minutes after the earthquake
Photo 4: Flooding of the campus from Jozan Canal
53 minutes after the earthquake
113 minutes after the earthquake (2)
190 minutes after the earthquake (2)
Photo 8: Flooding of campus on March 12
Photo 9: Parking lot of the high school
Photo 10: Escape from Ishinomaki Technical High
School (1)
School (2)
School (3)
School (4)
Photo 14: Damage of a technical training building of
Ishinomaki Technical High School
Photo 15: Damage of Ishinomaki Technical High
School
Photo 16: A person fleeing for safety on March 12
Photo 17: Persons fleeing for safety on March 12
(1)
Photo 18: Persons fleeing for safety on March 12
(2)
Photo 19: A group fleeing for safety on March 12
(1)
Photo 20: A group fleeing for safety on March 12
(2)
Photo 21: Evacuation shelter in a high school (1)
Photo 24: Chuo 3-chome (Manga-kan) (1)
Photo 39: Minami-Hama area (from north) (1)
Photo 40: Minami-Hama area (from north) (2)
Photo 41: Minami-Hama area; a timber house
moved by tsunami waves
Photo 42: Minami-hama area; a steel construction
Photo 43: Minami-hama
municipal hospital (closed)
area;
Ishinomaki
Photo 44: Minami-hama area; a timber house
standing (1)
Photo 45: Minami-hama area; a timber house
standing (2)
Photo 46: Minami-hama area; a steel building
Photo 47: Minami-hama area; steel construction
Photo 48: Minami-hama area; an RC building
Photo 49: Kadowaki area; an elementary school
burnt after the earthquake
Photo 50: Minami-hama area; Minami-hama
apartment building
Photo 51: a factory of a paper manufacturing
company
Photo 52: A factory
Photo 53: Yoshino area
Photo 54: Minato area (1)
Photo 58: Minato area; an elementary school
Photo 59: Minato area (an elementary school)
Photo 60: Akai area of Higashi-Matsushima City
Reconnaissance Report (9) of Arahama District, Sendai City
The 2011 off the Pacific Coast of Tohoku Earthquake
Released on March 28, 2011
President of AIJ Tohoku Chapter
Mr. Ohno, Staff, Nakata Citizen Center, Sendai City
Reporter
Mr. Ohno, Staff, Nakata Citizen Center, Sendai City
This report describes tsunami damage of Arahama District, eastern part of Sendai City, approximately
30-minute drive from JR Sendai Station. Route map is shown at the end of this report (Fig. 1). The
damage investigation was carried out along National Route 137.
The observed damage may be summarized as follows:
(1) The outflow items were seen to increase beyond the Sendai Tobu Highway, but out flown houses
could not be seen in this area (Photos 1 to 3).
(2) Toward Arahama District, more damage was seen to houses and buildings (Photo 9).
(3) Near the Sendai Municipal Arahama Elementary School, most timber houses were flown out and
collapsed by tsunami attacks (Photos 10 and 11).
(4) Damage of the Sendai Municipal Arahama Elementary School buildings is shown in Photos 12 and 13.
The first two stories of the four-story reinforced concrete buildings were submerged under tsunamis and
the first story of the building was filled with overflow materials. The buildings were retrofitted before the
earthquake and structural damage was not observed.
(5) No timber houses remained standing between the Arahama Elementary School and the coast. Only
steel construction and reinforced concrete buildings were standing (Photos 14 to 18).
(6) Photo 19 shows a breakwater embankment at the coast. No damage was observed to the
embankment, but the tsunami wave crossed over the embankment.
(7) Photos 20 and 21 show the hand rails on the embankment; one in the direction of tsunami flow
suffered no damage, but the rail normal to the flow was damaged totally from its base.
Photo 1: Outflow items beyond the Sendai Tobu
Highway; but houses were not damaged (1)
Photo 2: Outflow items beyond the Sendai Tobu
Highway; but houses were not damaged (2)
Photo 3: Roads have been cleared
Photo 4: Tsunami wave reached the roof of the
building although the building was not damaged.
Photo 5: Tsunami wave reached the roof of a
building.
Photo 6: No damage was observed to the concrete
block masonry walls
Photo 7: Outflows were seen to increase. Tsunami
wave reached beyond the floor level (1).
Photo 8: Outflows were seen to increase. Tsunami
wave reached beyond the floor level (2).
Photo 9:Building damage was seen to increase as
we approach Arahama District.
Photo 10: A house was completely washed away
except for the foundation (1).
Photo 11: A house was completely washed away
except for the foundation (2).
Photo 12: Overall view of the Sendai Municipal
Arahama Elementary School; tsunami wave
submerged the lower two stories.
Photo 13: Gymnasium of the Arahama Elementary
School; tsunami water flooded inside to yield
complete damage to the content.
Photo 14: Steel construction remained standing in
Arahama District
Photo 15: Close up view of the building shown in
Photo 14 (1).
Photo 14 (2).
Photo 14 (3).
Photo 14 (4).
Photo 19: Undamaged Breakwater embankment
Photo 20: Damage of rails on the embankment (1).
Photo 21: Damage of rails on the embankment (2).
Sendai JR Station
Sendai Tobu Toll Road
National Route 137
Arahama District
Fig. 1: Visiting route

Tohoku Chapter, Architectural Institute of Japan Quick

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